Oil-burner.



A. H. LIGHT.

OIL BURNER.

APPLICATION FILED AUG.23, Leos.

Patented July 26, 1910.

3 SHEETS-SHEET 1.

A. H. LIGHT.

OIL BURNER.

APPLICATION FILED AUG.23,1909.

Patented July 26, 1910.

3 SHEETS-SHEET 2;

A. H. LIGHT.

OIL BURNER,

APPLIUATION FILED AUG. .1909.

'w .5; u 3;; '2 13 1s:

Patented July 26, 1910.

3 SHEETS-SHEET 3.

STATES PATENT OFFICE. enrnun 1i LIGHT, or LOS ANGELES, cALinonNm. r

Specification of Letters Eatent. Patented July 26, 1910, Application m August 23, lacs. Serial m5. 514,22:

1'0 auwhomitmcy concern:

--B a knownthat I, mm H. Lam, It I citizen of the United States, residing at Los Angelesin the county of Los An eles and State oh-California, have invented certain 'new and useful Im rovements in Oil-Burnlers' and I do here y declare the followin to a full, l'clear, and exact description 0 the invention,= such as will enable others make and use the same' skilled in the art to which it appertain's to invention relates to oil burners and hasfor its object to produce a fuel mixture of ahigh efiiciency as-well as a burner that will automatically control the supply of fuel to .the, fire box while permitting a. minimum-'amountlof u'nconsumed .carbon to pass throughthe furnace. 7

With these and other objects 'in' view the invention consists in the novel details of construction and combinations of parts more :box, with the invention applied thereto;

heater.

- trolling said ipe,

. film through the annular hereinafter disclosed and particularly out in the claims. ferring to the accompanying drawmgs forming a part ofthis specification inwhich like numerals refer to like. arts in all the views :-'Figure '1, is an end e evational view showing the invention applied to 21. 10001110- tiv'e furnace; Fig. 2, is a sectional side eleva? tional view of a portion of a locomotive fire Fig. 3, is a sectional .elevational view of the mixing chambers and their co-acting parts, taken on theline 3 3 of Fi 4. Flg. 4, is a sectionalview takenon t e line 44 of 5, is a. sectional view showg the detaile construction ofthe super- 1 re resents an suitable. oil su l as for exfm le, :1 pige leading to a tgrilz can ried by t e tender of the locomotive and having a constant pressure maintained therein. 2' represents a suitable valve convalve control ing the admission of oil into the mixing chamber 5, and adapted to deliver the oil into said chamber in a thin assage 6, as be readilyunderstood T his valve is rovided w th a recess in its top in w ich looselyfits the stem 7, controlle by a hand wheel- 8, as, will ,be more fully hereinafter disclosed.- c p 9 re resents'any suitable steam supply contro -by-a valvej10 and oonnecte to the rmellile d g t h ge 2" the other end of the coils 3'an oil chamber, and 4 a .joint 46 for accomplishin 44, and, thereby,

superheater 13. Said hinge is hollow, as shown, and is provided wlth a connection let leading into one end of the coils 15 of the superheater, and which coils are exposed to the heat of the interior of the furnace. The of said superheater is joined by a shortconnection 16 and through another portion of thehollow hinge 12 to the supply pi e 17 provided with the branches 18 and 19. The branch 18 tangentiall enters the mixing chamber 5, as indicate valve 20. Above the mliiing chamber 5 is a second mixing chamber 23 connectedwith said chamber 5 by a passage 21, and the branch 19 tangentially-enters this chamber 23, as alsoindicated in'Fig. 4. 'Said branch in Fig. 4:, and is controlled by the 19 is likewise controlled by a suitable valve valves 28 and 29 respectively. From the valve 28 leads the pipe 30 to the burners 31 entering the side of the furnace; and from the valve 29 leads the pipe 32 to the burn -e1s 33, enteringthe furnace on the sideopposite from that of the burners 31. From the valve 28 also leads the pipe 35 to the pilot burners 36. From the valve 29 like wise leads the pipe 37 to the pilot burners 38.

40 represents any suitable connection with the live steam in the boiler, and it leads to the chamber 41 provided with the diaphragm 42 controlled by the spring 43. The tension of said spring 43 is, in turn, controlled by the larger hand wheel 44 through the medium of the disk 45, which slides up and down in the cylinder-containing the spring, when the hand wheel 44 is turned, by means of the screw thread 55, as shown.

The rod ,7 is preferably made in two parts, as shownfa nd the turning of the hand wheel 8 has the efi'ectof increasing or decreasing the total length of said rod. In Fig. 3 there is conventionally shown a screw threaded this purpose, while the upper end 47 of said 8; washeror disk 48, against which the diaphragm is adapted to rest, as' shown.

It is evident if liv steam be admitted through the pipe'40, t at the movement of the diaphragm downward, under the action ofthepressure of, the live steam, may be regulated by screwing up on the hand wheel rod,7 rests 1n oppqs the pressure es. p t e prmg 3, he i um of alaa phragm 42. It also evident, if the total. length of the rod 7 is sutlicient, that the movement of the diaphragm downward ma close the valve 4; while if the total lengtli of the rod 7 is not suiiicient, 'the movement of the diaphragm downward-will have no eifect upon said valve 4. In other words by lengthening or Shortening the rod 7 through turning thehand wheel 8, the valve at may be subjected to the action of the-said diaphragm, or by cutting off steam in the pipe 40, by means of the valve 50, said valve 4. may be controlled by hand.

51 represents a suitablelever for controlling the damper-s52 admitting air'to the furnace grates 53, but as said mechanism is not specifically claimed in this application, a further description thereof is dispensed with. I

54 represents a pipe connected to the steam supply-9 controlled by a valve 55, which is adapted 'to receive steam from the outside when the engine is in the round house and before st .=m has been generated in its own boilers.

In operation: Supposing the l'OCOlHOlLlVG to be in the round house and ready to start; the pipe 54 is connected--- to any suitable 'stea-m supply, oil is turned on through the pipe 1, and the valvm 20 and 22 are suitably adjusted. Oil will then be forced up 7 through the pipe 1 into the chamber 3 in the form of a thin film through the annular Orifice 6 into the mixing chamber 5. At the same time steam will pass from the round house supply through the connection 11, the superheater 13, and connections 1T, 18 and- 19 to the mixing chambers 5 and 23. The steam being tangentially deliveredinto each of the mixing chambers 5 and the oil in the first chamber will be rotated around the interior of the same many hundreds of times a second, and, as it becomes highl' subdivided, the mixed oil and steam wil pass through the passage 21 into the chamber 23, where it willbe again subjected to a like rotation and further subdivided. The: finely attenuated oil and steam will then pass out through the pipes 26 and 27 to the side burners 3i and 33 where it may be lighted under the locomotive boiler. -Thc fuel mixture will continue to burn until sufficient steam'is generated within the loco motive boiler, when the pipe 53' may be disconnected from the. round house supply, the valve 55 closed, and the steam supply turned on through the pipe 9 from the ocomotivc. boiler, when, of course, the atomivling action in the chambers 5 and 23- will continueas before. v

It is well known that firemen on locomotives, under present conditions, are compelled to give practically all their attention to the oil supply and the furnace, and this permits them to. give very little attention to the control of the air supply or to other matters. The live steam, however, admitted through pipe 40, acting upon the diaphragm 42, causes the rod 7 to close the valve 4 and to thereby shut off the supply of oil when the pressure in the boiler becomes too eat; and likewise the spring 43 raises sai dia phragm and permits the oil to force, the valve 4 open, and thereby increase its supply when the ressure in the boiler becomes too low. In t llS manner the supply of oil and therefore the ressure of the steam, is automatically"regiilated. If.the parts are set to maintain an. particular pressure, they may bechanged or any other pressure, by simply ad'usting the largerhand wheel 44, and there y the tension of the s ring 43. Since the steam'passes through. t 'e superheater before it enters the atom'izing or mixing chambers, it is raised to a high temperature, and, therefore, it acts to more completely atomize or vaporize the oil than would be the case were it not passed through the superheaterr The engineer, of course, by suitably manipulating'the lever 51 may readily control the draft, and therefore, the combustion which takesplace inside the fire. box: --Vherrthe engine" comes to a stop, the fuel supply may be cut off at the valves 28 and 29 except for the pilotlights; and when it isdesired to start again the pilot lights may be utilized to relight the main fires.

The loose connection between the valve 4 and the stem 7, enables the valve to o crate to a limited extent independently 0 said stem; and the ad ustment of'the length of the stem enables the operator at will to control the extent of 'this limited operation, o'r in other .words, to control the maximum thickness of the film of oil delivered to the chamber 5.

' 1. In an oil burner the combination of an .011 supply; a steam supply; an atomlzmg chamber in which said steam is tangentially delivered and in which said oil is delivered in a thin film; a second atomizing chamber; a second steam supply for said second chamher; a connection between said chambers;

a pipe leading from said second chamber to the furnace; and automatic means for controlling the amount of oil delivered to said first mentioned chamber by the pressure of the sieam generated by said furnace; substantially as described.

. 2. In an oil burner the combination of an oil supply; a steam supply; a superheater for the steam; an atomizing chamber in by the steam generated by said furnace, comwhich said steam is tangentially delivered and in which said oil is delivered in a thin film; a second atomizi'ng chamber; a second steam supply for said chamber; a connection between said chambers; a pipe leading from said second chamber to' the furnace; and automatic means comprising a diaphragm for controlling the amount of oil delivered to said first mentioned chamber by the pressure of the steam generated by said furnace; substantially as described.

3. In an oil burner, the combination of an oil supply; a steam supply; an atomizing chamber in which said steam is tan entially delivered and in which said oil is eliveredv in a thin film; a second atomizing chamber; a second steam supply for said chamber; a connection between said chambers; a pipe leading from said second chamber to the furnace; and automatic means com rising a diaphragm; a spring for contro ling the same; and a connection between said valve and diaphragm for controlling the amount of oil delivered to said first mentioned chamber by the pressure of the steam enerated by said furnace; substantially as escribed..

4. In an oil burner the combination of oil and steam supplies; a plurality of atomizing chambers; means for tangentially delivering steam to said chambers; a connection between said chambers and a furnace; and means for automatically controlling the oil prisin a dia hragm, a live steam supply on one si of t e same, a sprin on the other side of said diaphragm, a verve and a connection-between said valve and diaphragm, substantially as described.

5. In an oil burner the combination of oil and steam supplies; a plurality of atomizing chambers; means for tangentially delivering steam to said'chambers; a connection between said chambers and a furnace; and means for automatically controlling the oil by the steam generated by said furnace, comprising a dia hra a live steam supply on one side 0 saifllaphragm, a spring on the other side of said diaphragm, means to adjust the tension of said 5 ring, a connection between said valve an diaphragm, and means to adjust the length of said con nection, substantially as described.

6. In an oil burner the combination of oil and steam supplies; a plurality of atomizing chambers; means for tangentially admitting steam to said chambers; a connection between said chambers and a furnace; and

means for controlling the suppl of mixed Oll and steam, comprising a va ve; a dia- I phragm, adapted to control said valve, a

connection between said valve and diaphragm, and means for eliminatin the action of said diaphragm on said va ve; substantially-as described.

7. In an oil burner the combination of oil and steam supplies; a plurality of atomizing chambers; means for tangentially admitting steam to said chambers; a valve controlling the admission of oil to one of said chambers;

a diaphragm adapted to control said valve;- a connection between said valve and dla phragm; means to adjust the length of said connection; and an adjustable sprin for controlling said diaphragm; substantia ly as described.

8. In an oil burner, the combination of oil and steam supplies; an atomizing chamber; means for delivering the steam into said chamber in a tangential direction; means for superheating said steam before it enters said chamber; a valve controlling the admission of oil to said chamber; a diaphragm adapted to control said valve; alive steam connection on one side of said diaphragm; a connection between said' valve and diaphragm; means to adjust the length of said connection; and an adjustable spring for controlling said diaphragm; substantially as described.

9. In an oil burner for locomotive furnaces, the combination of an oil supply; an atomizingchamber connected to said supply; a pipe adapted to deliver steam to said chamber from the boiler of said locomotive; a pipe also adapted to deliver steam from an outside source to said chamber; a second chamber in which the mixed oil and steam is further finely divided; and means for auto said superheater and then to'said chamber;

means to tangentially admit steam to said chamber; and automatic means for regulating the supply of oil admitted to said chamber in accordance with the pressure of said steam; substantially as described.

In testimony whereof, I afiix my signature, in presence of two witnesses.

. ARTHUR H. LIGHT.

Witnesses:

L. G. Porrnn, M E. Rm. 

